<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../reactBag/react.development.js"></script>
    <script src="../reactBag/react-dom.development.js"></script>
    <script src="../reactBag/babel.min.js"></script>
</head>
<body>
    <div id="app"></div>


    <script type="text/babel">

        class Title extends React.Component{
            //类式组件必须拥有render

            render(){
                return <h1>我是类式组件</h1>
            }
        }

        ReactDOM.createRoot(document.getElementById('app')).render(<Title/>)

    </script>
</body>
</html>